505405463504 has 20 divisors (see below), whose sum is σ = 979239824640. Its totient is φ = 252698412000.

The previous prime is 505405463503. The next prime is 505405463539. The reversal of 505405463504 is 405364504505.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505405463503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831407 + ... + 1304625.

It is an arithmetic number, because the mean of its divisors is an integer number (48961991232).

Almost surely, 2^505405463504 is an apocalyptic number.

It is an amenable number.

505405463504 is a deficient number, since it is larger than the sum of its proper divisors (473834361136).

505405463504 is a wasteful number, since it uses less digits than its factorization.

505405463504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539978 (or 539972 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 41.

The spelling of 505405463504 in words is "five hundred five billion, four hundred five million, four hundred sixty-three thousand, five hundred four".